How to purchase the right Inlet Kit
Different models require different needs for inlet kits. This is a guide on how to determine which equipment is the one for you:
Important note: Only models starting P11_ and higher can upgrade to the inlet sensor.
1.PART: Make sure you have the latest firmware
You can find information about the latest version of the firmware here. Your machine should have automatically updated to the latest firmware when it is connected to the internet.
To check if your machine is up to date, go into the MACHINE SETUP menu on the touchscreen - and check the version number is the same as the latest firmware update (at the time of writing, that is 20.2.0).
If your roaster did not update itself to v20.2.0 before 13 December 2023, then we need to manually push an update to your machine: please fill out the form here for assistance.
2.PART: DO YOU NEED A NEW PCB?
Some roasters might need a new PCB to use the Inlet sensor.
How to determine if you need a new PCB:
1. Go to SERVICE MENU (how to find hidden SERVICE MENU)
2. Press on DEBUG HARDWARE
3. Look up line “TC1 CHIP (INLET): …”
- TC1 CHIP (INLET): INSTALLED - no need for new PCB
- TC1 CHIP (INLET): NOT INSTALLED - you need a new PCB
2. Press on DEBUG HARDWARE
3. TC1 CHIP (INLET) is installed and you don’t need a new PCB for inlet sensor.
How to install an Inlet sensor
Before purchasing an Inlet sensor, please check the manual and watch the video to determine if you or your technician can handle the instructions and safely install the sensor.
Different inlet kits and pricing
My PCB is ready for the inlet temp sensor.
Inlet kit without new PCB is now available for purchase:
You want to install it yourself: 350 EUR incl. shipping (BUY NOW)
You want us to install it for you: 350 EUR + 200 EUR shipping (shipping fee is only estimated, we schedule pick up and send it back to you)
My PCB is NOT ready for the inlet temp sensor
Inlet kit with a new PCB
New PCB available for purchase:
You want to install the inlet sensor and new PCB yourself: 550 EUR incl. shipping (BUY NOW)
You want us to install it for you: 550 EUR + 200 EUR shipping (shipping fee is only estimated, we schedule pick up and send it back to you)
Inlet kit with a fixed PCB
Instead of purchasing a new PCB, you can have the missing chip installed on your current PCB.
We will install the chip on your provided PCB for 350 EUR + 50 EUR shipping. (BUY NOW)
You want us to install chip on PCB and inlet: 350 EUR + 200 EUR shipping (shipping fee is only estimated, we schedule pick up and send it back to you)
Please get in touch with our sales team if you are interested in the inlet temperature sensor: sales@roestcoffee.com
Maintenance
Maintenance of your sample roaster determines how well it performs. To keep up the quality of your roasted coffee, follow the basic cleaning schedule of your ROEST sample roaster.
Here you can find the recommended cleaning schedule for your ROEST machine. Before starting, make sure to follow the safety instructions!
How often you need to clean your machine depends on how often you roast, how many batches you’ve roasted, how dark you roast, and the size of your batches. Oil and fat especially will be difficult to remove with time.
Sections:
Before you start
⚠️DISCLAIMER
Information in this document is believed to be accurate and reliable. However, the manufacturer does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of the use of such information. The manufacturer is not liable or responsible for any problems arising from the attempted repair. The manufacturer reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. The manufacturer's products are not designed, authorized, or warranted to be suitable for use in applications where failure or malfunction can reasonably be expected to result in personal injury, death, or severe property or environmental damage. The manufacturer accepts no liability for inclusion and/or use of its products in such equipment or applications and therefore such inclusion and/or use is for the customer’s own risk.
⚠️SAFETY INSTRUCTIONS
make sure the roaster is turned off
the power cord has to be unplugged
follow the steps as instructed below
FREQUENT CLEANING - every 100 batches or weekly
Depending on your use, after about 100 batches or weekly, your sample roaster needs a quick clean-up. It includes three areas: filter under the bean cooler, chaff drawer, and fan gitter. Before starting, follow the safety instructions!
SAFETY INSTRUCTIONS
Switch off and unplug your roaster before starting.
WHEN
After 100 roasting sessions.
TIME
5-10 minutes
TOOLS
Brush, fiber cloth
steps
FILTER UNDER THE BEAN COOLER
Remove the bean cooling tray and empty the filter. You can also vacuum the area under the bean cooler.
CHAFF DRAWER
Switch off the roaster and unplug it. Open the chaff drawer, remove the airtight foam, empty it (it should be emptied every 20-25 batches), and wipe it with a paper cloth or brush. Read more here.
FAN GITTER
Make sure the roaster is switched off and unplugged. Removing the fan gitter and using compressed air to blow dust away is best. You can also use a dusting cloth and wipe the dust off. If you don’t remove the fan gitter, be careful not to push too much dust into the machine, as it can cause issues with overheating.
recommended: Impellers
It’s wise to pay attention to your impellers as well. After a while, they will be covered with oil and fat from the coffee, and the more regular cleaning you do, the easier you will do a deep clean in the future. For routine cleaning, you don’t have to remove them, but wiping them off as much as possible with a cloth, a brush, or compressed air is wise.
recommended: ventilation exit from the top
The area behind the charge handle can get filled with beans; if not removed, they will melt and become very difficult to remove. First, remove the top plate and then remove the charge handle. Remove any beans that may be stuck there.
Watch the video below with detailed steps of the regular maintenance process.
Recommended steps to add into the frequent cleaning routine:
DEEP CLEANING - AFTER 1000-5000 BATCHES OR MONTHLY
After about 1000-5000 batches, your ventilation should be deep cleaned if you haven’t already. The best practice is to do this regularly, so oil and fat don’t get a chance to build up, making it harder to clean the impellers properly. The process includes two areas: ventilation exit in the back and from the top of the roaster. Follow the instructions to clean your ROEST sample roaster properly.
SAFETY INSTRUCTIONS
Let your ROEST cool down properly. Switch off and unplug the roaster before starting.
WHEN
After 1000-5000 roasting sessions or monthly.
TIME
1hr +
TOOLS
2-millimeter hexagonal key, brush, microfibre cloth, vacuum cleaner or pressurised air, degreasing chemical such as espresso machine detergent or PBW cleaner.
steps
VENTILATION EXIT IN THE BACK OF THE ROASTER
Before starting make sure your roaster is switched off and unplugged.
To clean the ventilation exit in the back of the roaster, remove the ventilation hose. Follow this guide on how to remove the impellers and soak them in hot water and fat remover or espresso detergent.
VENTILATION EXIT FROM THE TOP
Before starting make sure your roaster is switched off and unplugged.
Start with removing the top plate. Carefully place it on the side. Remove the charge handle. Clean the ventilation exit using a brush. If beans or dirt has melted into the metal, the part can be removed and soaked in hot water and fat removal/espresso detergent.
Roaster overview
The following images show an overview of the front and back of your ROEST.
Sections:
Front overview
1. HOPPER for adding beans to the roaster.
2. BEAN CHARGE HANDLE for dropping the beans into the drum.
3. ROTARY ENCODER KNOB for adjusting settings.
4. BEAN DROP HANDLE for preheating the drum or manually releasing the beans.
5. BEAN TRIER for checking beans during the roasting process.
6. TOUCHSCREEN for full manual mode (displaying parameters and adjusting variables).
Machine parameters
If you would like to adjust your machine settings, you can access them via Machine Setup on the touchscreen.
1. Bean cooling duration: Duration of increased speed after drop.
2. Bean cooling %: Percentage speed after drop.
3. Bean cooling idle %: Percentage speed while idling.
4. Temperature reading: Celsius or Fahrenheit.
5. Bean cooler light and Window light: Can be turned ON or OFF.
6. Cool. tray warn (BETA): Coming soon.
IMPORTANT. The bean cooling fan is always ON, but can be set to increase in speed when the coffee is dropped.
If you don’t want the bean cooling fan to increase speed after dropping, set the timer to 0 seconds or the fan speed to the same rate as the idling speed.
How to install: Conversion Kit
Here are the instructions on how to use your conversion kit.
Different Conversion Kits
Machines with a production number of P16_900 or higher can be converted to any voltage. For older machines, conversion is only possible when your machine was originally wired as 115v or 100v.
CONVERSION KIT TO 115V
IMPORTANT Difference: 115V VS 230V FUSE
CONVERSION KIT TO 230V
Where to buy Conversion Kit?
Are you interested in purchasing a Conversion kit? Visit our eshop! Note: Conversion is only possible when your machine is wired as 115v or 100v.
Before you start
⚠️DISCLAIMER
Information in this document is believed to be accurate and reliable. However, the manufacturer does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of the use of such information. The manufacturer is not liable or responsible for any problems arising from the attempted repair. The manufacturer reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. The manufacturer's products are not designed, authorized, or warranted to be suitable for use in applications where failure or malfunction can reasonably be expected to result in personal injury, death, or severe property or environmental damage. The manufacturer accepts no liability for inclusion and/or use of its products in such equipment or applications and therefore such inclusion and/or use is for the customer’s own risk.
⚠️SAFETY INSTRUCTIONS
make sure the roaster is turned off
the power cord has to be unplugged
follow the steps as instructed below
CONTENTs OF THE KIT
2x Heating element (230v or 115v)
Power cord
2x Fuse (230v or 115v)
TIME
5 - 10 minutes
TOOLS
hex keys (included in package with ROEST sample roaster)
Important
For machines with production numbers lower than P16_900, conversion is only possible when your machine was wired as 115v or 100v.
To check if your machine was wired as a 115V, see the roaster’s label with the name and production number. It will say Px_xxx 115v or 110v or Px_xxxC .
Heat distribution remains the same on 230v and 115v.
Instructions
To convert your roaster to the desired voltage, there are two sets of instructions you need to complete:
Changing the heating element and
Changing the fuse (see the guides below).
Make sure your roaster is turned off and unplugged before you begin.
I. part: Changing heating element
II. part: Changing fuse
After you have changed your heating element and replaced the correct fuse, you are ready to go!
Important safeguards
When using electrical appliances, basic safety precautions should always be followed, including the ones below.
Sections:
General
1. Read all instructions carefully before using the appliance.
2. The roaster is only intended for commercial use.
3. Incorrect operations and improper use can damage the appliance and cause injury to the user.
4. Do not touch hot surfaces. Use handles or knobs.
5. To protect against electrical shock, do not immerse the cord, plugs, or roaster in water or other liquids.
6. Always turn off the power button and unplug from the outlet when not in use and before cleaning. Allow to cool before turning off.
7. Using accessory attachments or software not recommended by the appliance manufacturer may cause injuries, fire, or electric shock.
8. Do not use outdoors.
9. Do not let the cord hang over the edge of the table or counter or touch hot surfaces.
10. Do not place on or near a hot gas or electric burner or in a heated oven.
11. Always attach the plug to the appliance first, then plug the cord into the wall outlet. To disconnect, turn any control to OFF, then remove the plug from the wall outlet.
12. Do not use appliances for other than intended use.
13. The roaster operates at high temperatures and must be kept away from flammable materials, including chemicals, fabrics, and paper.
14. The roaster must be placed on a heat-resistant, slip-proof surface that will not allow the roaster to slide.
15. Allow 20cm of space around the sides and front of the roaster.
16. Never use the ROEST from within a cabinet.
17. Never leave the ROEST unattended during pre-heating and roasting. Also, do not leave the roaster unattended until 2 minutes after the cooling process has started to ensure no fire is present.
18. There is a risk of the coffee beans catching fire during roasting. Parts of the roaster also become hot enough to cause burns.
19. The fumes from roasting may be harmful. Please ensure adequate venting of smoke. Read all about ventilation here.
20. The instructions for cleaning the appliance must be followed.
21. The appliance must not be operated using an external timer or separate remote-control system.
22. This appliance can be used by children aged eight years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning the use of the appliance in a safe way and understand the hazards involved:
• Children shall not play with the appliance.
• Cleaning and user maintenance shall not be done by children unless they are older than eight and supervised.
• Keep the appliance and cord out of reach of children under eight.
23. If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer or its service agent.
24. If the ventilation sucks in coffee beans or any small object, they will be ejected (shot out) at high speed from the exit ventilation hole. Primarily this can happen through the cooling tray.
Therefore, the ventilation exit hole must never be directed against people, and a person must never look inside the ventilation exit hole when the roaster is on. We recommend always using at least a small ventilation hose to create a 90-degree angle.
25. This appliance is intended to be used in cupping labs, coffee shops, roasteries, households, and similar applications such as staff kitchen areas in shops, offices, and other working environments; - farmhouses; - bed and breakfast type environments.
26. Save these instructions.
One year guarantee
This product is guaranteed for one year from the date of purchase. If any defect arises due to faulty materials or workmanship, the defective products must be returned to ROEST for repair or replacement.
The following conditions apply:
The product must be installed and used per the instructions in this user manual.
The guarantee does not cover wear and tear, damage, misuse, or consumable parts.
ROEST Coffee AS has no responsibility for incidental or consequential loss or damage.
Revisions
Alterations services and accessories
1. Do not modify the roaster without permission from the producer.
2. Any accessories not recommended by the manufacturer must not change the operation of the coffee roaster or interfere with regular operation.
3. If disassembling is necessary, allow the machine to cool completely before service is carried out. Always disconnect the power plug before disassembling the roaster.
4. Do not operate the roaster if not fully assembled.
5. Do not operate the coffee roaster if it is damaged or you suspect a malfunction.
6. Do not attempt to service the roaster yourself unless instructed by us. Using accessory attachments other than those supplied or recommended by the manufacturer may cause hazards and void your warranty.
Electrical
1. To avoid electric shock, do not operate the roaster in a wet environment or near water. Any cleaning should be done with a moist or dry cloth and only be performed when the roaster is cooled down, and the power cord is disconnected. Some parts may be removed for additional cleaning.
2. The power cord and USB cord must be arranged in such a way that they will not be tripped over or able to pull the roaster off the table. Keep the cords away from the front part of the roaster, which may get very hot and can melt the wire.
3. The roaster needs a dedicated electrical circuit with ground (earth). Do NOT plug other appliances into this circuit.
4. If an extension cord is needed, please ensure it meets the minimum power rating requirements and is fully grounded (earthed). Do not connect other appliances to the cord.
Mechanical
1. Never touch moving parts; do not place hands or fingers inside the drum while the roaster is connected. This includes the trier hole, hopper, and the side where beans exit.
2. Never place hands or fingers inside the ventilation exit at the back. The fan has metal impellers that can create injuries.
3. The coffee roaster is heavy, and care should be taken when moving the roaster. Only move the roaster when it is completely cooled down. Do not lift the coffee roaster by the handles, chaff drawer, or other detachable parts.
Roasting
1. When coffee beans are dropped from the machine into the cooling tray, they are extremely hot and should not be touched until cooled completely.
2. The operating environment should be clean and free from dust and sand.
3. ROEST is only for roasting coffee beans. Roasting other food/items will void the warranty.
4. After roasting has finished, the roaster will return to “roasting standby mode” and be ready to roast another batch.
5. When roasting is done, please leave the roaster to cool down. Follow the instructions here.
6. Do NOT disconnect the power until properly cooled down, or you can risk damage.
7. The chaff drawer should be emptied after each roast session or every 25 roasts. Read the instructions here.
8. After about 500-1000 roasts, the roaster must be deep cleaned.
9. The roaster is designed for profile roasting, minimum of 5 minutes of roasting cycles. Meaning the temperature goes down to below 250 degrees Celsius between each roast. The roaster shall therefore not be used on maximum power in manual mode. If the environment temperature reaches 320 degrees Celsius, the electrical element will be turned off.
Adjustable roasting parameters
There are many parameters you can adjust before or during roasting. You will find some of them on the main touchscreen, the rest are located in ROAST SETTINGS.
Sections:
Main screen parameters
These are the adjustable parameters located on the main screen of your roaster.
1. DEVELOPMENT TIME. You can change the development time during the roasting process without switching to manual mode. Tap on DEVELOPMENT TIME and adjust the time using the rotary knob. Once “First Crack” is registered, the timer will start and cannot be changed. By tapping the countdown, you can cancel the auto drop and drop the beans when you want to.
2. AIR TEMPERATURE (ET).
This is the primary variable for adjusting a roast. The sensor sits in the upper mid-section of the drum. This temperature responds very rapidly to changes in heat input. If adjusting the ET, you will switch to manual mode (Manual ET Profile).
3. BEAN TEMPERATURE (BT) AND DRUM TEMPERATURE
Instant temperature measurement of the bean surface. Adjusting BT on the screen will not switch to manual mode. Instant measurements of the drum temperature are also visible below the BT temperature.
4. FAN.
The fan setting changes the speed of the exhaust fan. Note: If you have a fixed ventilation hose out of the room and smell roasted coffee, this can be because the exhaust fan setting is too low.
IMPORTANT: The higher the airflow, the more energy is used in temperature-based profiles. More increased airflow will have an impact on the roasting time. However, the effect is not as significant as you might have experienced with traditional open drum roasters. We suggest adjusting the temperature or power to adjust the total roasting time. We have roasted great coffee on both low and high airflow. It depends on the profile overall – and of course – the coffee.
5. POWER.
When controlling the power, any changes made to the power percentage on the screen is directly changing the power input to the heating elements. You will switch to manual mode if manually adjusting the power (Manual Power Profile).
Roast settings parameters
These are the adjustable parameters located in your roaster via ROAST SETTINGS.
1. REDUCE PWR AFTER FC.
If you roast using a Power profile, this setting can automatically reduce the power after a First Crack event has been registered.
For example: if the power setting in the profile is 80%, then a 10% reduction would mean that the power is reduced to 72% (10% of 80% power is eight percentage points).
Watch this video to learn more about this useful feature.
2. WAITING TEMPERATURE (charge temperature).
The starting air temperature for Power Profiles. You can set a preheat temperature when creating a profile as well, but if you wish to vary between batches, for example, you can leave that field blank and just adjust from the screen in between batches instead.
IMPORTANT: The waiting or charge temperature is set in the profile creator for temperature profiles. Depending on the profile, it can be beneficial to have a higher or lower starting temperature than the profile itself. A high charge temperature will increase the conductive heat transfer at the beginning of the roast, as the roasting chamber will store more heat. A lower charge temperature will help reduce energy consumption if the machine is idling for more extended periods between roasts and will also shift the heat transfer more towards convection in the beginning.
3. DEVELOPMENT (AUTO DROP) SETTING.
Choose between percentage (%) and seconds (SEC) for development time after First Crack. If percentage is used, the development time will be calculated from the total time.
4. MAIN MOTOR SPEED.
Manual adjustment of the drum speed. It can be adjusted at all times during a roast without switching to manual mode.
IMPORTANT: Changing the Main Motor Speed (RPM) of the paddles agitating the coffee will have a much more significant impact on the roast than changes made to the airflow. Initially, higher RPM equals a faster roast. With higher RPM, the coffee is “thrown” into the hot air and spread more evenly in the chamber. With higher RPM, the coffee will be exposed to the hot air more efficiently. Still, it will also impact the precision of the bean temperature sensor since the sensor will pick up hot air and bean surface temperatures.
5. BUZZER TEMPERATURE.
The buzzer will make a sound when a set bean temperature is reached. This is helpful if you do not want to miss, e.g., the First Crack event.
Watch the video below to see how to set up the Buzzer on your roaster.
6. YELLOWING BT THRESHOLD.
The bean temperature which must be reached for ROEST to mark a Yellowing event. Note: It is set at 175 degrees Celsius by default which is valid for a 100g profile. If you roast a different batch size, you should adjust it.
7. FIRST CRACK DETECTION.
If you have purchased a ROEST sample roaster with the FC detection system, tap ON to activate this feature. Here you can adjust the following parameters:
7.a. BT Threshold: Bean temperature that has to be reached in order for First Crack detection to start registering single cracks.
7.b.Trigger count: You can choose how many cracks are needed in order to register the First Crack event automatically. We recommend 3-5 cracks.
Parameters that will not affect automatic mode
The following parameters can be adjusted without switching to manual mode:
Development time
Fan
Reduce PWR After FC
Development time (Auto drop)
First Crack settings (BT threshold and Trigger count)
Main motor speed (RPM)
Parameters that will affect manual mode
If you are roasting in automatic mode, ROEST will switch to manual mode if you adjust the following parameters:
Air temperature
Power
However, the First Crack detection will not be affected if already active.
You can read more about roasting here.
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Adjustable roasting parameters
Service menu - includes recommended settings for motor gear ratio, cooling fan, heater fan, and PID settings.
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